Valve



Patented Aug. 3.1, 1926-.

. UNITED `srAjrEs PA ,i 1,598,265 TEM oFFIcE.

ALFRED encon, E PHILADELPHIA, PENNSYLVANIA, AssIGNoR To TioGA STEEL AND InoN COMPANY, 0E rmLAnE'LrmA,

sYLvANIA.

-PENNISYLVANVIA, A CORPORATION 0E PENN- .Y

VALVE.

Application Ifiled April 26, 1926. l'Serial No. 104,724.

My invention relatesL more particularlyto heavy duty gate valves of the type'characterized by an extruded and forged valve body and separately jforged hubsmechamcally attached thereto.. Mechanical connections, such asrheretofore proposed forthis purpose, contemplate jomts penetrating the side Wals of the valve body and communi. -eating with the pressure chamber and, hence,

a' prolific source of leakage under the de# iection andA distortion resulting from highv pressure and high temperature conditions.

- The principal' object of my invention is to insure fluid tightness of a forged valve body j with respect to its lineconnections; and the nature of the invention consists in eliminating alljoints Which depend upon penetration of the Walls of the valve body, and substituting-therefor external connections Whichnot only perform the primary officeof serving as line connections but also serveas reinforcements to enable the Walls of the body efficiently to resist distortion, and in an event and with or Without distortion are e fective `to prevent escape of Huid from the pressure chamber to the atmosphere.

With such and other objects in vievv my invention resides in certain improvements in valve bdi'es, hubs, and methods of assembly, particularly $0 all as hereinafter described and pointed out in the claims.

ln the accompanying drawings Figure 1 is a sectional view of `a valve body and hub assembly embodying my cinvention; and

Fig. 2 is a similar-'view of a modification. According to my inventiomthe extruded body 5, with solid side walls, is formed with opposed laterally directed I"offsets 6, which Way. The offsets 6 'when machined or iinished constitute nipples which 'serve to re inforce the sidewalls of the body 5 and which are externally threaded for union with flanged hubs 7. The ends of the hubs are reduced initially, or by turning, and the an nulr seat or shoulder 8, thus provided, is at suc ground seated with relation to the extremity of the nipple. Thus assembled, a llet Weld l9.is applied Where thebub abutsl the body invorder topreventr/elative moyement of the 'parts and to insureiiuid tightness.

'the is si ibstantjally eliminated by inultimately are"pierced to'establish'a Huid-v depth as to permit the hub end to be yconsists in providing a forged valve body -gInf-the' embodiment, Fig. 2 distortion of' 5:5

creasing the section of the side Walls 10. The heavy section of the.sid`e Walls admits of machining in the nature 01E-annular recesses 11 thereby to provide nipples 12 forl the threaded reception 'of hubs 13. With they hubs screwed home and substantially ground seated'at their. `plural points of end \con tact 1.4 and 15, and the nipple rolled, if needY be, to insure thread tightness, the connection is completed by a illet Weld 16.

Havlngdescnibed my invention, claim 1. A. valve body having nipples or hub extensions, hubs ground seated with respect to .both body and nipples, and means :permanently securing theA parts in ground seated relation.

9;. A valve body havirg nipples or hub ex- 3. A valve body having nipples or hub extensions, hubs -ground seated with respect toboth body and nipples and having thread connection with said nipples and a Weld connection permanentlylsecuring the parts in the relation stated.

4'. A valve body consisting of a cup shape forging having side walls of relatively heavy section and machined formed fiuidway bosses in said walls, and line connections secured externally of the bosses.

5. A valve body consisting of a cup shape4 forging having-side Walls of relatively heavy section and machined formed luidway .bosses in vsaid Walls, and lineconnections secured externally of the bosses and metallically secured to the side Walls.

6. A forged valve bodyhaving integral iuidway extensions, bounded by sockets, and

line extensions penetrating the sockets secured to the body Iin l'luid tight relation. 7. A forged v/alve body' having integral fiuidway bosses bounded by sockets, and line extensions penetrating the sockets and permanently joined to the bossesand body.

8. IThe method hereinv described, which' having `side Walls of relatively heavy sec-` tion, piercin and machining the side Wallsy to provide uidvvay connections, and vpermanentlysecuiring hubs to said connections. 9. The method vherein described, which consists in providinga forged valve body having side Walls of relatively heavy section, piercing and machining the side Walls to provide liuidway connections, and Apermanentl securing hubs to said'eonneotions 5 and to t e body. l

`10."l`he method herein described, which consists in providing a forged valve body having side walls of relatively heavy section in the region of the trim, piercing and thread securing' and machining the side Walls to provide'luid Way connections extending beyond the body, vground seating hubs with relation `to the connections and body', and. metallioally securing the hubs to said In testimony whereof I ax my signature.

ALFRED ,CROOlS 

